Journal: ACS Applied Materials & Interfaces

Article Title: A Mg 2+ -Regulated Hydrated Vanadium Oxide Positive Electrode for Aqueous Mg-Ion Batteries

doi: 10.1021/acsami.5c08636

Figure Lengend Snippet: Ex situ XRD (a), Raman spectra ((b), inset enlarged Raman of pristine MgVOnH), X-ray absorption near-edge spectroscopy (XANES) (c, d) for the V K-edge, phase-uncorrected Fourier transforms (FT) (e, f) of V K-edge extended X-ray absorption fine structure (EXAFS) ( k 3 -weighted), and V 2p, F 1s, and Mg 1s X-ray photoelectron spectra (g, h, i) of MgVOnH at various discharge/charge states, respectively; the isosbestic points (c, d) are pointed out by solid red arrows.

Article Snippet: Furthermore, Raman spectra were recorded on a Horiba Scientific LabRam HR Evolution microscope configured with a 633 nm HeNe laser (17 mW power), a 600 gr mm –1 grating, and a charge-coupled device (CCD) detector.

Techniques: Ex Situ, Spectroscopy, Extended X-ray absorption fine structure

Journal: Nature Communications

Article Title: Elucidating the Facet-Dependent Oxygen Reduction Reaction Performance of Cu Nanosheet over N-O co-Doped Graphene

doi: 10.1038/s41467-026-70854-w

Figure Lengend Snippet: The potential-dependent in situ Raman spectra of Cu(200)@N/O-C ( a ) and Cu(111)@N/O-C ( b ). The in situ Cu K-edge XANES spectra ( c ) and FT-EXAFS spectra ( d ) of Cu(200)@N/O-C. Source data are provided as a Source Data file.

Article Snippet: In situ Raman spectra were acquired using a HORIBA LabRAM Soleil confocal Raman microscope equipped with 600 grooves·mm -1 diffraction grating, 50× objective lens (Zeiss), and 633 nm excitation laser.

Techniques: In Situ

Journal: Chemistry of Materials

Article Title: pH Regulates Ion Dynamics in Carboxylated Mixed Conductors

doi: 10.1021/acs.chemmater.5c03288

Figure Lengend Snippet: pH-dependent photophysical characterization of P3CBT-P. a) Spectroelectrochemistry of P3CBT-P in pH neutral (0.1 M KCl, pH 6.4; 0.1 M KPF 6 , pH 5.3) and pH acidic (0.1 M KCl, pH 2.5; 0.1 M NaPF 6 , pH 2.5) electrolytes. b) Schematic of the in situ spectroelectrochemical cell. c) The evolution of steady-state absorbance during electrochemical doping from −0.6 to 0.8 V (vs Ag/AgCl), showing changes in the 0–1 neutral (530 nm), polaron (880 nm), and bipolaron (1350 nm) peaks. d) Schematic of the operando transient absorption spectroscopy (TAS) setup and the doped-state (0.8 V). TAS spectra at e) pH neutral and f) pH acidic KCl conditions at open circuit potential and doping potential 0.8 V vs Ag/AgCl. g) Operando Raman experiment setup and h) evolved spectrum for P3CBT-P in neutral and acidic electrolytes from 0 V to 0.8 V doped condition.

Article Snippet: Raman spectra were obtained using a Horiba LabRAM Odyssey confocal Raman microscope with a 633 nm excitation laser source in backscattering geometry.

Techniques: In Situ, Operando Spectroscopy, Spectroscopy